SpecDesign Materials Sheet

Spreadsheet of materials to be purchased/borrowed for the MCC ETRO 102 Spectrometer Design activity.

The number of items required depends on the number of students in the class. We would like to have students work in groups of 2 or 3, so the number of groups, N, is the number of students divided by 2 or 3. We expect N to be in the range of 5 - 8.

ITEM	Number (min)	Number (ideal)	Vendor	Price	Vendor	Price	Vendor	Price
LIGHT SOURCES
incandescent bulb (long filament "hot dog" shape)	4	N	(MCC already has?)
lamp or socket for incandescent bulb	4	N	(MCC already has?)
variac voltage transformer	1	2	(MCC already has?)
Gas Tube : Mercury	1	1	Edmund	$40	Arbor	$25	BasicScience	$18
Gas Tube : Oxygen	1	1	Edmund	$30	Arbor	$25	BasicScience	$18
Gas Tube : Nitrogen / Neon	1	2	Edmund	$30	Arbor	$25	BasicScience	$18
Gas Tube : Argon / Xenon	1	2	Edmund	$30	Arbor	$25	BasicScience	$18
Spec Tube Power Source	2	N/2	Edmund	$200	Arbor	$150	BasicScience	$125
Sodium Lamp w/ pwr source	0	2	Pasco	$500

COLLIMATORS
biconvex lens fl=100mm, d=50mm-100mm	N x 3	N x 3	Pasco	$20/6	(can borrow from IfA Manoa)	$0
biconvex lens fl=200mm, d=50mm-100mm	N x 3	N x 3	Pasco	$20/4	(can borrow from IfA Manoa)	$0

SLITS
razor blades	N x 2	N x 6
fixed width
variable width	0	1	EdmundOptics	$325	* very low priority

DISPERSERS
see thedispersers pagefor more vendors/pricing and details
prism	0	2	Educational Innovations	$6
transmission grating sheets 500 lines/mm	10	10	Rainbow Symphony	$2.50	(minimum order = 10 sheets)
transmission grating sheets 1000 lines/mm	10	10	Rainbow Symphony	$2.50	(minimum order = 10 sheets)
cardboard-casing transmission grating	N x 3	50	Rainbow Symphony	$0.40
co-mounted transmission grating	1	N	Boreal	$32
reflection grating 600 lines/mm and/or 1200 lines/mm	0	2	Edmund Optics	$58-$170	Note: less expensive = tiny! (25x25mm)

SCREENS/DETECTORS
white index cards
digital photometer	0	2	* not high priority		(MCC probably already has one or two?)

MOUNTING
optical bread-boards	N / 2	N	EdmundOptics	$800+	(MCC has 4 18x18 hole bboards)
optical rail system (w/ mounts, lenses, light source)	0	0 - N	Pasco	$450	Edmund	$60	BasicScience	$15
lens/mirror mounts	12	N * 3	(TBD)
card/screen mounts	4	N * 2	(TBD)		Note: The mounts must be chosen to match the
slit mounts	4	N	(TBD)		breadboards/rails that will be available.