Chula’s College of Engineering Pioneers the Use of Gamma Rays to Examine Massive Timber

Newswise – Lecturers of the College of Nuclear Know-how on the College of Engineering, Chulalongkorn College have developed a particular machine for scanning bushes to find out trunk density and hollowness to stop accidents from fallen bushes and in addition as a solution to preserve massive bushes in city areas.

Massive bushes standing tall for years with branches unfold out offering shade would possibly look wholesome and robust, but one can not inform whether or not internally the trunks would possibly already be hole. This will trigger accidents of bushes falling and injuring passersby, even inflicting loss of life equivalent to what occurred 5 years in the past when a Royal Poinciana (Flame Tree) on the Chula campus fell.

That deadly accident is what impressed Affiliate Professor Nares Chankow and Dr. Manusavee Lohvithee, lecturers of Chula’s Division of Nuclear Know-how, College of Engineering, to develop a tool for scanning bushes utilizing gamma rays to find out the well being of the bushes through the density of the trunks making it the primary and solely such endeavor right here in Thailand.

In line with Assoc. Prof. Nares, “Gamma rays can penetrate the trunks of bushes akin to the x-ray of our physique within the hospital. The process will assist decide the tree’s well being —whether or not its internals are wholesome, have turn out to be hole due to decay, or have been eaten up by termites and white ants. Different forms of rays also can carry out the duty however x-rays would require using a generator which might require electrical currents and therefore not very handy to make use of. ”

The usage of gamma rays for wholesome bushes and folks’s security

Assoc. Prof. Nares additional defined that the gamma-ray scanner for bushes has been specifically designed to supply correct and speedy outcomes with out destroying the bushes. The machine includes a gamma-ray measurement nozzle that’s 3-4 occasions quicker than common. It’s linked to a computerized system that propels the belt which is managed by distant management and put in on a hydraulic forklift.

“The gamma-ray scanning machine has a nozzle that’s 3-4 occasions quicker which makes the focus of the ray comparatively decrease and is thus not harmful to the particular person utilizing it. It takes solely 10 minutes to look at the well being of 1 place of the tree and if wanted, scanning might be completed from a number of angles or repeatedly for better precision in every examination. ”

To look at a tree, the machine needs to be used on a flat floor with spacious environment which can permit easy accessibility for the forklift or hydraulic automobile to the tree. If the trunk is proven to be hole, then a tree help machine is put in for further help, or cement is injected into the hole half.

Scanning bushes for the advantage of Chula and society

Since 2019, the Division of Nuclear Know-how, College of Engineering, Chulalongkorn College has employed the gamma-ray tree scanner as a part of the Chula Massive Tree venture by beginning with the 5 Chamchuri (Rain Timber) planted by HM King Bhumibol over 60 years in the past . Sadly, the fifth of these bushes had fallen due to a rain storm earlier than the examination venture had begun. Two of the bushes have been discovered to be significantly hole however the College had seen to it that each one 4 bushes standing have been propped up by metal rods.

Such duties have continued till at present. Except for the 4 rain bushes subsequent to Maha Chulalongkorn Constructing, different outdated bushes on the College of Engineering and different Colleges on campus have been scanned for the security of all Chula college students and workers.

The Division of Nuclear Know-how has additionally obtained requests repeatedly from different businesses exterior Chula to supply this scanning service. Just lately, three rain bushes with trunks 80-95 centimeters vast alongside the canal at Soi Somkid between Central Embassy and Central Chidlom buying malls have been scanned. The realm is about for panorama improvement with a pedestrian bridge added resulting in Khlong Saen Saeb. Because of some limitations, for the reason that house is kind of slim, the scanning machine wanted to be redesigned with a decreased dimension and weight. The manufacturing of this modified model took a mere 5 days and the outcomes of the scanning confirmed big hole areas in all three bushes.

“The Division of Nuclear Know-how has additionally used low energy gamma scanning tools to look at cracks and decide the power of as many as 140 teak wooden poles chosen for use within the building of Thailand’s new parliament constructing. The venture comes beneath the supervision of Assistant Professor Chadet Yenchai. We anticipate that sooner or later this tools could also be additional developed making it simpler to make use of with an automated system that permits us to see perpendicular photos contained in the bushes. This can even depend on the price range that may be allotted for this venture. ” Assoc. Prof. Nares added.

For these curious about tree scanning with gamma rays, kindly contact the Division of Nuclear Know-how, College of Engineering, Chulalongkorn College at Tel. + 66-2218-6781
E-mail:[email protected] Fb:


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